Portable grist-mill.



J. S. LORD.

PORTABLE GRIST MILL. APPLICATION FILED FEB.20.190v5,

3 SHEETS-SHEET? 1.

' wbtn l'nventol'ykf 9210x041 BATENTED MAR. 2'7, 1906.

No. 816,108. I PATENTED MAR. 2'7 1' 906.

J. S. LORD.

PORTABLE GRIST MILL. APPLICATION FILED FEB. 2-0. 1905.

' s SHEETS-SHEBT 2.

Witnesses H ,rnvmwff/"Lw 0x 26 No. 816,108. I PATENTED MAR. '27, 1906.

J. S. LORD. PORTABLE GRIST MILL.

APPLICATION FILED FEB. 20, 19 05.

3 SHEETS-SHEET 3.

Wzj'n'esse s .Inven-bbr% ,M @115 m M- 4 I Q i UNITED T S PATENT OFFICE.

JOHN s. Loan, or ocDENJo PORTABLE YG'RIST-IVII'LL;

no. sienna. v

Patented March. 27, 1 906.

To all whom it may concern.- I

' sive constructionand of light weightdesigned to-be used in thenature of an attachment to be connected With a grinding-mill of the ordinarykindtor the purpose of l n and arating the flour from thecarrier product and I also top'rovide inithe same machine means for cleaninggrain and also means for mixing twpkinds of grain to be fed to the grindingmiv y My invention consists in the construction, arrangement,and combination with a grinding-mill of the hour and grain cleaning and handling mechanism, as hereinafter more fully set forth, pointed out in the claims, andillustrated in the accompanying drawings, in

Figurel shows a top or plan view of the I complete machine, Fig.2 showsa horizontal sectional view on the line2 2 ofiFig. 3.- Fig; 30.

3- show-s a vertical longitudinal sectional view on theline 3'3of Fig. 1. Fig. 4 shows a vertical longitudinalsectional view on theline 4 4 of 1;and Fig. 5 shows a detail view, partly section, illustrating the spouts for dischargng grain into either the grinder or the clean- Re'ferri g the accompanying drawings,

"1 have; used the reference-numeral 10 to indicate the grinding-mill. mill is of ordi-. 'naryconstructiomand hence is not shown or described in detail herein.

I My .improved machine comprises a rectangular frame 11, supported on legs 12. At one end' of the frame is ahopper14, attached to the adjacent legs 12 and provided with a central vertical partition 15, forming two compartments in the hopper. Fitted into said hopper is the lower end of an elevator-leg 16, having there- .in-achain-an'd bucket elevator 17 of the ordi- .vator leg, near ts lower end, I have provlded openings 18 to admit the grain in the com-; partments oi the hopper 14 to the bottom of nary construction. In both sides of the elethe elevatorleg. These openingsmay be ct'wered the slides 19, which slides move ordinary construction, driven frointh Application filed February 20,1905. Serial No. 247,043.

independently of each other in the .traeks or guides 20, so that either one or bothiiiay he closed or opened. The assume-bucket elevator 17 is driven from a shaft 2.1 at the top of the elevator-legend the saidshaft is rotated by the belt 22, running over the pulley 23cm the shaft 21, and said belt is driven by the grinding-mill, as shown in Fig. 4. .At the upper end of the conveyer-leg 16 wherethe chain-and-bucket elevator discharges I have provided two spouts 2 4 and .25, inclineddolv'vnwardly and outwardly from each other.., At the point where these spouts 'cometogether I have provided a pivoted damper 26 operated by the handle 27. In one position th s damper cuts off the spout 24, as shown in Fig. "5,

and in its other position it cuts off the speut charge into a hopper 28 in the 'ira me 111,

which hopper discharges directly into the grindingmill 10. The other spout 24 discharges directly upon a sieve 29,- which sieve is supported in an inclined'positiqn on the supports 30 and is constantly vibrated during the operation ofthe machine as hereinafter appear. Beneath the sieve 29 is a compartment 29* in the frame.- Theground rain after passing throughthe mill 10 is disc argd through the 8""01'11b 31 into' the elevator-leg 32. In this evatorleg 32 is a chain-and bucket elevator 33-(fif *a t 23 at its top. At the top of the elevators-leg areltw'ospou'ts 34 and '35, and I have provided a damper36, similar to the damper "2 6, by which the ground grain may bedi reoted to either oneof the spouts '34 amass. If it is desired to use the ground grain without staph-Q rating the hulls from the flour, it is discharged through the spout 35. If it, is de sired to separate and purify thegroundgrain, it is discharged through the spout 34 and falls upon a sieve-frame 36. This sieve frairfie is supported in an inclined positionulpo the 'ning over the through an opening 42 therein. The flour may be taken from this compartment through the opening covered by the door 43. That portion of the ground grain that does not pass through the sieve 38 moves downwardly to the coarse sieve 39, and at the bottom of this coarse sieve is a spout 44 to receive the particles that pass through the top of the coarse sieve and to convey them to a second spout 45, which discharges into the grinding-mill. The tailings from the sieve '39 also discharge into the upper end of the spout 45, and the particles that pass through t e sieve 39 are carried by the deflector 46 through the opening 47 into the compartment 48, from which they may be moved through the opening covered by the door 49.

I have provided means for removing the bran and particles of relatively light weight as follows: Mounted on top of the machineframe 11 is a fan-casing 50, having a shaft 51 running through it and a fan 52 fixed to said shaft. This shaft is driven by a belt 53, runpulley 54 on the shaft 51 and also over a pu ley 55 on the shaft 21. Two tubes 56 and 57 communicate with the eye of the fancasing, and one of them extends I downwardly to a point adjacent to the sieve 39. Mounted on the lower end of the tube 56 is an adjustable sleeve 58, provided with a lug 59. A lug 60 is fixed to the tube 56, and a screw-threaded rod 61 is passed through these lugs and provided with a thumb-nut 62, so that the said sleeve 58 may be adjusted relative to the sieve 39. When this sleeve is close to the sieve and the fan is being operated, the suction upwardly through the tube 56 will be relatively great, and when the sleeve is elevated it will be relatively less. The numeral 63 indicates a discharge-tube connected with the fan-casing 50 and discharging into a cylinder 64, closed at its top and opened at its bottom, its lower end discharging into a compartment 65, to which access is had through the opening covered by the door 66. The numeral 67 indicates an o en-ended tube passing through the top of t e cylinder 64. In use the bran and light particles of grain that are drawn upwardly through the tube 56 are discharged into the cylinder 64, and in this cylinder they are separated, the heavier particles falling downwardly into the compartments and the lighter ones carried by the current of air upwardly through the tube 67, through which they are discharged. The tube 57 has its lower end directly over the lower end of the sieve 29. It is provided with an adjustable sleeve (indicated by the numeral 68) and is made adjustable in the same manner as the sleeve 58. This tube 57 discharges into the eye of the fan-casing.

I have provided means for vibrating both of the sieve-frames 29 and 36 as follows: On

top of the frame 11 is a standard 69, in which a rock-shaft 70 is mounted. Fixed to the rock-shaft 70 is an arm 71, and fixed to the same rock-shaft are two arms 72 and 73. The arm 72 extends downwardly and enters a bracket 74 on the sieve-frame 36, and the arm 73 enters a bracket 75 on the sieve 29. Mounted upon the shaft 21 is an angular block 76, rotated with the shaft 72, and a contractile coil-spring 77 is fixed to the arm 71 and to the top of the machine-frame, normally holding the outer end of the arm 71 in engagement with the angular block 76. When the shaft 21 is rotated, both of the arms 72 and 73 will be vibrated and both of the sieve-frames will be vibrated upon their supports. I have also provided means for striking upon the under surface of the sieve fabric 38 for the purpose of releasing )articles that have become wedged in said fabric as follows: The numeral 78 indicates a rod pivoted to the arm 71 and passed through the top of the machine-frame. This rod is pivoted to a crank-arm 79, mounted in the machine-frame and having a crank-arm 80 connected therewith and standing under the sieve 38, so that an up-and-down movement of the rod 78 will cause the crank-arm 80 to strike against the under surface of the fabric 38. I have provided means for carrying clean grain from the discharge end of the sieve 29 into the hopper 14, as follows: The

numeral 81 indicates a spout receiving the discharge from the sieve 29 and carrying it to a second spout 82, which latter spout discharges in to the hopper 14.

In practical use and assuming that it is desired to mix two kinds of grain and grind them I place the grain in the opposite compartments of the hopper 14 and open both of the slides 19. In this connection if it is desired to mix the two kinds of grain in different proportions one of the slides may be left only partly open. The grain from both p arts of hopper 14 will enter the elevator-leg and be carried upwardly by means of the chainand-bucket conveyer. The damper 26 is set to discharge the grain through the spout 25 and from thence to the grindingmill. If the grain has passed through the grinding-mill, it enters the elevator-leg 32 and is carried thereby by means of the chain-and-bucket elevator 33 and, if it is desired, may be discharged from the elevator-leg 32 through the spout 35 without separating the hulls from the flour. If it is desired to clean the flour, the damper 36 is set to discharge the ground grain through the spout 34 and upon the upper end of the sieve 38. This sieve is being constantly vibrated and the rod 80 is constantly striking upon its under surface. Hence the grain moves downwardly over the face of the sieve and the flour passes through the sieve into the compartment 41. That IlO . portion of the groundgrainthat does notpass T through the sieve 38 must be discharged to one or the other of the following places: First it'ma'y pass throughthe spouts 44 and 45, and inthisevent it will 'be carried directly into the grinder and'be again elevated' and discharged ontop of the sieve 38, or it will-passthrough the-sieve39 into the compartment 48 where thelightparti'cles will be elevated'by the aircurrentv created by the fanand discharged thereby either into the compartment 65 or out throughthe top ofthe tube 67. In this way.

all of the valuable portions of the grain are ultimately reduced to flour of the proper de-' gree of fineness, andthe bran andwaste prodnets are received into the compartment'65.

. passes overthe sieve is returned to-the hopper 14, and the particles of lighter weight are elevated by the air-current and passed into the compartment65. In this Way the grain is thoroughly cleaned, and all grains that do not pass through the sieve 29 or are not ele' vated through the tube 57 are returned to the hopper 14, sothat a thorough cleaning and separation of the grain may-be had. All of the working parts of themachine are driven fromthe shaft-of the grinding-mill, and the machine may be readily changed for thevarious uses for which it is adapted simply by opening and closing the several dampers.

Havingw thus described my invention, What I claim, and desire to secure by Letters Patent of the United States therefor, is

1.. The combination with a grinding-mill, of a machine-frame, a sieve in the machineframe, a hopper having two compartments,

an elevator-legin the hopper communicating withboth compartments, an elevator in the elevator-leg, two discharge-spouts at the top of the elevator-leg, one discharging upon the sieve and the other discharging to the grinding-machine and a single valve controlling the discharge from the elevator-leg into said spouts. v

2. The combination with a grinding-mill, of a machine-frame, a hopper having two compartments, an elevator-leg in the hopper communicating with both compartments thereof, two slide-valves controlling the communication between the compartments and the elevator-leg, an elevator in the elevator leg, two discharge-spouts at the top of the elevator-leg, one of said spouts discharging into the grinding-machine, a sieve receiving the discharge from the other'spout, and a single valve for controlling said dischargespouts.

This sieve is constantly vibrated during 3 "The combination with a grinding-mill, of" amachine-frame, a hopper having two 1 compartments, an-elevator-leg in the hopper:

communicating with both compartments 3 thereof, twoslide-valves controlling the communication between the compartments and the elevator-leg, an elevator in the elevatorleg, two discharge-spouts at the top of the elevator-leg, oneof said spouts discharging into the grinding-machine, a sieve receiving i the discharge from the other spout, a single "valve for controlling said discharge-spouts, E and means for returning grain that passes 2 over said'sieve into the said'hopper.

4. The combination with a grinding-machine, of a frame, a hopper, an elevator-leg communicating with the hopper, an elevator in the elevator-leg, a spout at the top of the elevator-leg discharging into the grindingmachine, an elevator-leg receiving the discharge from the grinding-machine, an elevator in said elevator-leg, two spouts at the top of said elevator-leg, a single valve for controlling said spouts, a sieve receiving the discharge from one of said spouts and means for conveying substances that pass over said sieve back to. the grinding machine and means for conveying the substance passed through the other spout back to the hopper.

' 5. The combination with a grinding-machine, of a frame, a hopper, an elevator-leg communicating with the hopper, a shaft. at the top of the elevator leg, a chain-andbucket elevator in the elevator-leg driven by said shaft, a s'pout'at the top of said elevatorl leg discharging into the grinding-machine, an elevator-leg receivingthe discharge from the grinding-machine, said elevator-leg having 7 I thesaid'shaft passed through it, a chain-andbucket conveyer in the latter elevator-leg driven fromsaid shaft, a discharge-spout at the latter elevator-leg, a sieve receiving the discharge from said spout and means for con veying substances passing over said sieve back to the grinding-machine.

6; The combination with a grinding-machine, of a machine-frame, a hopper having two compartments, an elevator-leg communicating with both of said compartments, a

shaft at the top of the elevator-leg, a chainand bucket conveyer in the elevatorleg driven from said shaft, agrain-sieve and a flour-sieve in the-machine-frame, two spouts at the top ofthe elevator-leg, one discharging into the grinding-machine and the other discharging on top of the grain-sieve, a single valve controlling said spouts, a second elevator-leg receiving the discharge from the grinding-mill, a chain-and-bucket conveyerin the second elevator-leg driven from the same shaft as the first elevator, two dischargespouts at the top of the second elevator-leg,

one of said spouts discharging upon the floursieve, a single valve controlling said discharge-spouts, a fan-casing on top of the machine frame, a fan therein, means for driving said fan from the shaft of the elevators, tubes communicating with the eye of the fan-casing and extended to points adjacent to said sieves and a discharge-tube connected with the fan-casing.

7. The combination with a grinding-machine, of a machine-frame, a hopper having two compartments, an elevator-leg communicating'with both of said compartments, a shaft at the top of the elevatorleg, a chainand bucket conveyer in the elevator leg driven from said shaft, a grain-sieve and a flour-sieve in the machine-frame, two spouts at the top of the elevator-leg, one discharging into the grinding-machine and the other discharging on top of the grain-sieve, a single valve controlling said spouts, a second elevator leg receiving the discharge from the grinding-mill, a chain-and-bucket conveyer in the second elevator-leg driven from the same shaft as the first elevator, two discharge-spouts at the top of the second elevator-leg, one of said spouts discharging upon the flour-sieve, a single valve controlling said discharge-spouts, a fan-casing on top of the machine frame, a fan therein, means for driving said fan from the shaft of the elevators, tubes communicating with the eye of the fan-casing and extended to points adjacent to said sieves, a dischargetube connected with the fancasing, a cylinder receiving the discharge from the fan-casing, closed at its top and opened at its bottom, and an open-ended tube in the top of the cylinder with its lower end some distance beneath said top.

8. The combination with a grindingmachine, of a machine-frame, a hopper, an elevator-leg communicating with the hopper, an elevator in the elevatorleg, a discharge-spout at the top of the elevator-leg discharging into the grinding-machine, a second elevator-leg receiving the discharge from the grinding-machine, an elevator in the second elevator-leg, a discharge-spout for the second elevatorleg, a sieve-frame receiving the discharge from said spout, means for slidingly supporting the said frame in an inclined position, a sieve of relatively fine mesh at the upper end of the sieve-frame and a sieve of relatively coarse mesh at the lower end of the sieveframe, said machine-frame formed with a compartment for receiving the discharge through the fine sieve, said frame also provided with a compartment receiving the discharge through the coarse sieve, and means for returning the tailings from both the fine and the coarse sieve into the grinding-machine.

9. The combination with a grinding-ma chine, of a machine-frame, a hopper, an elevator-leg communicating with the hopper, an elevator in the elevator-leg, a dischargespout at the top of the elevator-leg discharging into the grinding-machine, a second elevator-leg receiving the discharge from the grinding-machine, an elevator in the second elevatorleg, a discharge-spout for the second elevator-leg, a sieve-frame receiving the discharge from said spout, means for slidingly supporting the said frame in an inclined position, a sieve of relatively fine mesh at the upper end of the sieve-frame and a sieve of relatively coarse mesh at the lower end of the sieve-frame, said machine-frame formed with a compartment for receiving the discharge through the fine sieve, said frame also provided with a compartment receiving the discharge through the coarse sieve, and means for returning the tailings from both the line and the coarse sieve into the grinding-machine, means for vibrating the sieve-frame, and means for striking the under surface of the fine sieve.

10. In a machine of the class described, a grain-sieve and a flour-sieve, means for slidingly supporting both of said sieves in an inclined position, a rotatable shaft, an angular block on said shaft, an arm yieldingly held against the angular block, two arms fixed to the said rock-shaft and attached to the said sieve-frames, a knocker beneath the floursieve, and a rod attached to the arm that engages the angular block, said rod connected with said knocker.

11 In a machine of the class described, a machine-frame, a hopper having two compartments connected to the machine-frame, an elevator-leg communicating with both compartments, slides for controlling the communication between said compartments and the elevator-leg, a shaft at the top of the elevator-leg, an elevator in the elevator-leg driven from said shaft, two discharge-spouts at the top of said elevator-leg, a single valve controlling them, a sieve receiving the discharge from one of said spouts, a grindingmachine receiving the discharge from the other spout, said frame formed with a compartment receiving the discharge through the grain-sieve, means for returning the tailings from the grain-sieve to the hopper, an elevator-leg receiving the discharge from the grinding-machine, an elevator in said elevator-leg driven from said shaft, an angular block on said shaft, a spout at the top of the second elevator-leg, a grain-sieve receiving the discharge from said spout, said frame formed with a compartment receiving the discharge through the flour-sieve, means for returning the tailings from the flour-sieve to the grinding-machine, a springactuated arm engaging the angular block, means for vibrating both of said sieves by said arm, a knocker for the flour-sieve actuated by said arm, a fan-casing, a fan therein, two tubes communicating with the eye of the fan-casing and having their lower ends above the said sieves, adjustable sleeves on the said tubes, a' discharge-tube tacle With its lower end below the top of the for the fan-casing, a receptacle closed at its receptacle. top and open at its bottom, receiying the discharge from the fan, said frame formed with 5 a compartment to receive the discharge from Witnesses:

the bottom of the said receptacle, and an L. V. GOVE, open-ended tube in the top of the said recep- WILLIAM OARMELLY JOHN s. LORD. 

